Improvement in carriage-springs



, "anni anni demise. y

LLYN I3. WoLeo'r'r, on CHICAGO, ILLINOIS, ASSIGNoR-To HIM? SELFANDISAAC SIMMONS, or BALTIMORE, MARYLAND.

Leners Patent No. 90,144, dazed Mm] 1s, 1869.

` f Y I IMPRvi-:MENT INCARRIAGE-SPRINGS. i i l The Schedule referredto in these Letters Pteiit and making part of tne same.

` To all whom fit/may concern:4 y i Be it known that I, ALLYN E.WOL`COTT, of Chicago, `in the county of Cook, and State of Illinois, have invented a .new and' useful Improvement in Metallic Springs; and I do herebydeclare the following to bea full, clear, and exact description ofthe same, reference L being had: to the accompanying drawings, and to the Aletters and gurcs marked thereon, which form a part oi'this specification, and in which- Figi-ire 1 represents a side elevation of my improved spring;`

Figure?, a topview of the same; l Figure 3, a seetional'view at the line x in fig. 2.; and Figure 4, a'tolview, showing an additional set of springe.A .i e. Y

The naturegof y anyilivention'eonsists in the combination oftwo'g .more sets oiSt-raight metallic springs resting'uponfcurved bearings, and connected by rods,

hereafter fully described. Y `To enable thoseskilled in the art to understand how `to nninnfiietnre and use my invention, I will proceed to describe the samewith particularity.

The-saine lettersof reference'ref In the annexed drawing` y y I A ,represents a curvedibearing, and B, a straight resilient plate orspring, the construction. and operation of which are fully `set forth lamldescrihed in my application .for a patent for .an improvement in metallic springs, of 'even date herewith. I

- 'lh'e' curved bearings C and springs D are constructedy er to the corref.y

i spending parts inthe different figures.

Witnesses the same as A and B, but the as to be above the spring. Y 'lhe ends of the springs are attached to the saine movable rod E, and separated by washers E', as clearly shown in the drawing.

There may be more than two sets of springs,` as shown bearing is inverted, so

in fig. 4, but when there are, each alternate bearing `should be inverted. i

It 'will be observed that by this com hina-tion of springs,

` the bearings are allowed to pass by each other as the weight is applied, and as the connecting-rod E is movable, they may passfby the entire length ofthe diami.. ater of the circle, whichdescribes thecurve of the face of the bearings A and 'C in case Said bearings are semicireles, thereby giving twice the motion to theweight that could be given in any other way.

The red lines z indicate the base of' tlie curved bear ings.. The bearings may be supported-in any suitable Having thus fully described Kthe construction and operation of my invention, What I claim. and desire to secureby Letters Pat ent is- 'he combination of two or more sets of metallic springs B and D, and their attendant curved bearings A and 0,' and connecting-rods E, whenY constructed and arranged so as to operate substantially as shown and speciiied.

ALLYN'E. WOLGOTT.

w LEWIS L. OOBURN,

.L LnGoBURN. 

